Finite Element Simulation Of Plate High-pressure Water Descaling

The steel industry is the backbone of our national economy industries, with the rapiddevelopment of the national economy, it has put forward higher requirements on the quality ofsteel products. Getting high value-added products have become the primary objective of themajor steel companies. High-pressure water descaling system is one of the essential step of theproduction process of steel rolling, whether the scales system work well or not will have directlyimpact on the surface the product surface qualities, product property and energy consumption.The steel surface will form a layer of oxide scale in the furnace, in order to avoid oxidescale into the inside of the rolling and lead to the surface qualities problems，we usually usehigh-pressure water to remove surface oxide scale before rolling. According to the actualproduction process parameters of hot rolling mill plate factory of Wuhan Iron and Steel, in viewof some products exist edge cracks phenomenon, by using the finite element softwareABAQUS， the high pressure water scales and rough rolling process model are established，Explore the rolling surface stress distribution of high-pressure water descaling.According to the results of finite element simulation: the temperature distribution andvariation of high pressure water descaling and rough rolling process are obtained. This paperfocus on stress distribution of the head and end in the different conditions of high-pressurewater、roughing pass reduction、the thickness of the rolling. The results show that: Under certainconditions the high-pressure water is the main factors that lead to the rolling surface stressincreased of the head and end, while the pressure of high pressure water get larger，the stress ofplate head and end get larger，The rough rolling reduction and the thickness of the rollingaffected stress of plate head and end also.